[sdiy] Prophet 10 / OB-X

[Bert Vermeulen]

A friend has some problems with his P10 and OB-X. I am looking for some
information;

Prophet 10
1: Can anybody tell what the voltage must be at the Power Supply. I measure
different value's as what is written at the pcb board.
2: There are two voices board in a P10. I have the schematics of the P5. Can
somebody help me at the part of the schematics of the P10  which controll
these voice boards.


OB-X (8 voices, curtis based voice boards)
After tuning tuning two voices became disabled. If i calibrate these two
voice wrong,(instead of that two leds are on only one is on) one of the not
working voices is working after (auto) tuning. If I disconnect one board,
the not working voice also works after autotune.  I have found the
schematics at internet but i can't read the text at these. Has somebody
better scanned schematics for me. The part i am looking for is the voice
board and the part which is used for the tuning section.

thanks

BV